Induction heating coil



March 30, 1937. H. G. ANDERSON INDUCTION HEATING COIL Filed Jan. 29, 1955 INVE NTOR f/OMER 6. A/vpERso/v BY flaw gm ATTORNEY Patented Mar. 30, 1937 2,075,079

UNITED STATES PATENT OFFICE.

INDUCTION HEATING COIL Homer G. Anderson, Newtonville, Mass minor to Raytheon Production Corporation, Newton, Mass., a corporation of Delaware Application January 29, 1935, Serial No. 3,930

4- Claims. (Cl. 219-47) This invention relates to induction heating a plane substantially at right angles to the vercoils, and more particularly to such cells for tical plane in which the major pcsstlon of each heating elements of electrical space discharge deturn lies In crdci: to insulate each turn 2 from. vices during the manufacture thereof. each other turn, I preicrebly interpcec strips of 5 An object of this invention is to provide a heatinsulating material 5 between. each adjacent turn. 5

mg coil of the type described which can heat fiat These strips cf insulating material 5 s1 plate elements, placed in substantially a. vertical ciently flexible so that when ends 3 alane cf electrical space dischargedevices more cf the ccil are bent cutwe z the insulation effectively than has heretofore been ncssibien 5 is likewise hent. In crater "1 e in w A further object is to produce such device pmper shape and I ifi 30 We 1 slsimple and rugged. in censtm individual turns thereef 1:

t e varieue legs c1 cell i l T he insulat r the coil cf F} l: ehce being heal to acccmpch structure cf said; cell 1;

v By bending the i i View cf my ncvel. heating cell, weirdly l there is wow the icweithe enmv a tube thereizl; ccil fi lying;

is :1 czrcsssecticn taken along line li it Within thie ctzel u sleeve '5 whicl 3 is a slcie View 9:51 "the call shawn in I e: s 50 the chewing cf I 1 the the In g 1116312 13633 has been yemcveei. the cell the menm'acture cf electriccf eiect g5 "(5e device "the l'netallic usually 13c ccnm e While I met .113 Glen; l.

M y UL tux "s 2, piefermjiy c .ctove tubing, Ti e it'vhifih is both a gccei. electrical a c as, exam; L 01" length of each of the turns 2 islcce in a eiticel plane. At the laws! end at the coil E the turns 1? are separated inte suhsta' e113 twc Q; 1 inventign ig-3 m i equal. groups. Each group is then went c'utwerti what, i l i d i 55 sci that the ends 3 and. l thereof are located in 1 An induction heggfing" mg! 1 v m; a pin 5% rality of turns electrically connected in series and lying in parallel planes, each coil having a corresponding. portion flared outwardlyi to lie in a plane at an angle to said parallel planes whereby a pocket is formed within the turns of the coil for receiving an object extended perpendicularly to the longitudinal axis of said coil.

2.. An induction heating coil comprising a plurality of turns electrically connected in series and lying in parallel planes, each coil having a portion flared outwardly to lie in a plane substantially perpendicular to said parallel planes whereby a pocket is formed Within the turns of the coil for receiving an object extended perpendicularly to the longitudinal axis of said coil.

3. An induction heating coil comprising a plurality of turns electrically connected in series and having an elongated transverse axis, the

turns being formed to have one end flared outwardly from the plane of the main portion of the turns to lie in a plane substantially perpendicular to the plane of the main portion of the turns whereby a pocket is formed within the coil.

4. An induction heating coil comprising a plurality of turns electrically connected in series and having an elongated transverse axis, some of said turns having a portion at one end flared outwardly in one direction and the other turns having a portion at the same end flared outwardly in the opposite direction so that said flared portions are oppositely disposed and provide an opening to receive within said coil an object extended perpendicularly to the longitudinal axis of said coil.

HOMER G. ANDERSON. 

